Regulator to control the flow of fluid.



l. H. SPENCER. REGULATOR TO CONTROL THE FLOW QF FLUID.

APPLICATION FILED AUG.10I I911.

Patented Oct. 5, 1915.

I I lp III! I IIILIII II I I \9 LVVEIVTOR.

By W MAM GOIViZ iL'SSES:

me n. SPENCER, OF WEST HARTFORD, connnc'rrcu'r, nssrenon 'ro THE s'rEivcER TURBINE CLEANER COMPANY, OF CONNECTICUT.

HARTFORD, CONNECTICUT, A CORPORATION OF REGULATOR TO CONTROL THE FLOW 0F FLUID.

To all whom it may coiwcrn:

Be it known that I, IRA H. Srenonn, a

citizen of the United States, and a resident of Test Hartford, in thecounty of Hartford and State of Connecticut, have invented a new and Improved Regulator to Control the Flow of Fluid; and the object of my invention, among others, is to provide a device more especially applicable to apparatus by means of which air-currents are induced and for so controlling the flow of air as to prevent strain upon the motor used to drive the apparatus.

One form of device embodying my invention, and in the use of which the object above set out, as well as others, may be attained is illustrated in the accompanying drawings, in which The figure is a view in side elevation of a device embodying'my invention with parts broken away to show construction.

In the use of electric motors for operating devices for producing air currents, and especially apparatus embodying a fan or fans as a means of inducing the air current, if the volume of air supplied to the fans exceeds a certain amount the motor isoverloaded, and should this overload be excessive either in amount or in length of time injury will result to-the motor.

In the use of vacuum cleaners, especially in installed plants, as in large buildings, the apparatus for producing the 'air currents is constructed of a givenv capacity as to the volume of air which may be passed therethrough. A number of inlets l t for the attachment of hose to which cleaning tools 15 are connected communicate with the apparatus orpump, the number of these inlets frequently being such as to conjointly supply more air than is intended for the apparatus or pump, in such case it being assumed that only such number of inlets will be concurrently used as will be within the capacity of the pump or fan. Should more than this numberof inlets' be opened for any reason a greater quantity of air will be supplied to the fan than is intended therefor with a result that the motor for driving the fan will be overloaded. It is especially in connection with such apparatus that my invention is applicable, and such is therefore selected by me for the purpose of illustration and description herein.

In the drawings the numeral 3 denotes a Specification. of Letters Patent.

Patented Oct. 5," 19115.

Application filed August 10, 1911. Serial No. 643,467.

pump or vacuum producingapparatus of well-known construction, and consisting of a number of fans arranged in series within the case, in the device shown the shaft 4 bemg vertical and the fans 5 rotating in horizontal planes. The air passes through the structure from top to bottom and through the outlet (5, herein shown is a tube which may communicate with a chimney or any other suitable outlet. An inlet 7 is located near the top of the case, and this inlet will communicate with a main 16 from which main branches 17 may extend and to which branches inlets 14 will be supplied for the accommodation of hose attached to cleaning tools. This construction of apparatus is well-known and further description is deemed unnecessary. A motor 8 is mounted upon a base and connected with the shaft 4, this serving to drive the fans 5.

Within the outlet 6, or at such other suitable point as will control the flow of fluid through the fans, I provide a valve 9, which is so located and constructed that when the volume of air reaches a certain predetermined amount the valve Will close, or partially close, the opening 10 for the passage of air- In the special form of construction herein shown this valve is a gravity valve pivoted as at 11 and arranged to normally rest upon .a seat screw 12, herein shown as a screw adjustably mounted in the outlet tube. A stop screw 13 is also adjustably mounted in the outlet in position to arrest the closing movement of the valve, the screw being adjusted as shown herein in such position that it does not entirely close the opening 10, but while allowing air to pass through the opening will so reduce the opening that an excessive amount of air cannot pass there through and the load on the motor will not therefore be increased to an injurious extent.

\Vhile I have shown the regulator located at the outlet from the fan it will be understood that it may be located in any position to so control the flow of air through the fans that an excessive load will not be placed upon the motor, and the details of construction herein shown and described may be devalve in said pipe, a seat for the valve means to regulate the closing of the valve, and means operating lndependently of the ator'esaid means to regulate the extent. of v opening.

of the valve.

2. In a device of the kind described, a casing, a pipe leading into the casing, a check valve in said pipe, a seat for the valve, independently operable means for regulating the extent of movement of the valve to its seat and the extent of movement of said valve from its seat.

I 1,155,525, i l I 3. In a device of the kind described, a

ing,' a pipe leading into the ca'sing, a gravity actuated check valve lath pipe; screw boltextending through the pipe and valve "seat't o control movement of the valve toward the, seat, and a second screw bolt extending through the pipe in opposition to the first to control the opening of the valve. 20 

